ArticleAmerican journal of ophthalmology2026
Progression in Preperimetric Glaucoma Eyes With and Without Microvasculature Dropout.
Article in American journal of ophthalmology, 2026. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Not yet cited in PubMed.
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Abstract
purposeTo investigate whether baseline microvasculature dropout (MvD) is associated with subsequent structural and functional changes in preperimetric glaucoma.
designSubgroup analysis of prospective cohort study data.
methodsThis study included 93 eyes from 70 participants with a glaucomatous optic disk appearance but no repeatable visual field defects, who were followed with optical coherence tomography, optical coherence tomography angiography, and visual field (VF) over a mean of 4.9 years. Circumpapillary retinal nerve fiber layer thickness and circumpapillary capillary density (cpCD) were assessed. Eyes were grouped based on the presence or absence of MvD at baseline. Mixed-effects models were used to identify factors associated with structural and functional progression.
resultsMean age was 67.7 (95% CI, 65.4-70.0) years. Among the 93 eyes, those with baseline MvD (32 eyes) showed faster loss of cpCD (-0.88 [95% CI, -1.08 to -0.67] %/year) compared to eyes without MvD (-0.23 [95% CI, -0.42 to -0.04] %/year). In multivariable models, the presence of MvD was independently associated with faster cpCD loss (-0.63 [95% CI, -0.95 to -0.32] %/year, P < .001). In contrast, it was not associated with circumpapillary retinal nerve fiber layer loss (0.03 [95% CI, -0.33 to 0.38] µm/year, P = .886). Moreover, PPG eyes that had MvD at baseline developed VF loss more frequently than those without MvD. (62.5% vs 26.2%, P < .001).
conclusionsBaseline MvD in PPG is associated with both faster vessel density loss and subsequent VF loss, and higher rates of developing glaucomatous visual field damage. Assessment of MvD can be used to estimate risk and guide the frequency of follow-up in patients with PPG.
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